When Joel Simon was a kid, he and his brother began snorkeling around the pilings in murky Alamitos Bay near Long Beach, Calif. "It was one of the most intriguing places I'd ever been," he says ...

The first person to stick a hollowed-out branch in their mouth and plunge their face in the water deserves a round of applause. Now, thanks to flexible plastic tubes and watertight eyewear, pretty ...

See colorful marine life, thriving reefs, and crystal-clear waters at these top destinations from the Florida Keys to Australia. Off the coast of Brazil, halfway between São Paulo and Rio de Janeiro, ...

Key Largo, the northernmost and longest of the Florida Keys, is a top destination for divers and snorkelers alike. Bordered by Florida Bay and the Atlantic Ocean, the self-titled Dive Capital of the ...

If you’re headed to Cozumel and love the water, don’t skip the National Marine Park. This protected stretch of the Mesoamerican Reef offers some of the best snorkeling and diving in the world, with ...

U.S. News Insider Tip: Catch a 360-degree livestream of the coral reef in the visitor center if you aren't diving yourself. Or, enjoy a refreshing break in the air-conditioned movie theater when it ...

Key Largo’s John Pennekamp Coral Reef State Park, the first undersea park in the United States, remains one of the only places in Florida where you can snorkel or scuba dive among truly healthy coral.

Admit it. When driving through the Keys, you just want to pull over and take a plunge into the rich blue waters that surround the 113-mile-long chain of coral and limestone islands and 42 bridges.